Fix \sa to a valid function in SDL_metal.h.
diff --git a/include/SDL_metal.h b/include/SDL_metal.h
index eb30828..9285471 100644
--- a/include/SDL_metal.h
+++ b/include/SDL_metal.h
@@ -82,7 +82,7 @@ extern DECLSPEC void SDLCALL SDL_Metal_DestroyView(SDL_MetalView view);
*
* \since This function is available since SDL 2.0.14.
*
- * \sa SDL_MetalCreateView
+ * \sa SDL_Metal_CreateView
*/
extern DECLSPEC void *SDLCALL SDL_Metal_GetLayer(SDL_MetalView view);